National Semiconductor MM54C195, MM74C195 Technical data

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MM54C195/MM74C195 4-Bit Registers

MM54C195/MM74C195 4-Bit Registers

February 1988

General Description

The MM54C195/MM74C195 CMOS 4-bit registers feature
parallel inputs, parallel outputs, J-K serial inputs, shift/load
control input and a direct overriding clear. The following two
modes of operation are possible:

Parallel Load

Shift in direction Q

towards Q

A

D

Parallel loading is accomplished by applying the four bits of
data and taking the shift/load control of input low. The data
is loaded into the associated flip-flops and appears at the
outputs after the positive transition of the clock input. During
parallel loading, serial data flow is inhibited.

Serial shifting is accomplished synchronously when the
shift/load control input is high. Serial data for this mode is
entered at the J-K inputs. These inputs allow the first stage
to perform as a J-K, D, or T-type flip flop as shown in the
truth table.

Schematic and Connection Diagrams

Features

Y

Medium speed operation 8.5 MHz (typ.) with 10V

supply and 50 pF load

Y

High noise immunity 0.45 VCC(typ.)

Y

Low power 100 nW (typ.)

Y

Tenth power TTL compatible Drive 2 LPTTL loads

Y

Supply voltage range 3V to 15V

Y

Synchronous parallel load

Y

Parallel inputs and outputs from each flip-flop

Y

Direct overriding clear

Y

J and K inputs to first stage

Y

Complementary outputs from last stage

Y

Positive-edge triggered clocking

Y

Diode clamped inputs to protect against static charge

Applications

Y

Automotive

Y

Data terminals

Y

Instrumentation

Y

Medical electronics

Y

Alarm systems

Y

Remote metering

Y

Industrial electronics

Y

Computers

Pin 8 to GND

Pin 16 to V

CC

TL/F/5902– 1

Dual-In-Line Package

Top View

TL/F/5902– 2

Order Number MM54C195 or MM74C195

C

1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

TL/F/5902

Absolute Maximum Ratings (Note 1)

b

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.

Voltage at any Pin

Operating Temperature Range

MM54C195
MM74C195

b

0.3V to V

b

b

a

0.3V

CC

55§Ctoa125§C

40§Ctoa85§C

Storage Temperature Range

Power Dissipation (PD)

Dual-In-Line 700 mW
Small Outline 500 mW

Operating V

Absolute Maximum V

Range 3V to 15V

CC

CC

Lead Temperature (Soldering, 10 sec.) 260§C

65§Ctoa150§C

DC Electrical Characteristics Min/Max limits apply across temperature range unless otherwise noted

Symbol Parameter Conditions Min Typ Max Units

CMOS TO CMOS

V

IN(1)

V

IN(0)

V

OUT(1)

V

OUT(0)

I

IN(1)

I

IN(0)

I

CC

Logical ‘‘1’’ Input Voltage V

Logical ‘‘0’’ Input Voltage V

Logical ‘‘1’’ Output Voltage V

Logical ‘‘0’’ Output Voltage V

Logical ‘‘1’’ Input Current V

Logical ‘‘0’’ Input Current V

Supply Current V

CMOS/LPTTL INTERFACE

V

IN(1)

V

IN(0)

V

OUT(1)

V

OUT(0)

Logical ‘‘1’’ Input Voltage 54C V

Logical ‘‘0’’ Input Voltage 54C V

Logical ‘‘1’’ Output Voltage 54C V

Logical ‘‘0’’ Output Voltage 54C V

OUTPUT DRIVE (See 54C/74C Family Characteristics Data Sheet) (Short Circuit Current)

I

SOURCE

I

SOURCE

I

SINK

I

SINK

Note 1: ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. Except for ‘‘Operating Temperature Range’’
they are not meant to imply that the devices should be operated at these limits. The table of ‘‘Electrical Characteristics’’ provides conditions for actual device
operation.

Output Source Current V

Output Source Current V

Output Sink Current V

Output Sink Current V

e

5V 3.5 V

CC

e

V

10V 8.0 V

CC

e

5V 1.5 V

CC

e

V

10V 2.0 V

CC

e

5V 4.5 V

CC

e

V

10V 9.0 V

CC

e

5V 0.5 V

CC

e

V

10V 1.0 V

CC

e

15V 0.005 1.0 mA

CC

e

15V

CC

e

15V 0.05 300 mA

CC

e

4.5V V

CC

e

e

e

e

e

e

e

e

e

4.75V V

CC

e

4.5V 0.8 V

CC

e

4.75V 0.8 V

CC

CC

CC

CC

CC

5V, V

25§C, V

10V, V

25§C, V

5V, V

25§C, V

10V, V

25§C, V

e

e

e

e

4.5V, I

4.75V, I

4.5V, I

4.75V, I

IN(0)

OUT

IN(0)

OUT

IN(1)

OUT

IN(1)

OUT

eb

360mA 2.4 V

O

eb

360mA 2.4 V

O

e

360mA 0.4 V

O

e

360mA 0.4 V

O

e

0V

e

0V

e

0V

e

0V

e

5V

e

V

CC

e

10V

e

V

CC

74C V

74C V

74C V

74C V

CC

T

A

CC

T

A

CC

T

A

CC

T

A

b

1.0

b

CC

b

CC

b

1.75 mA

b

8.0 mA

b

0.005 mA

1.5 V

1.5 V

1.75 mA

8.0 mA

18V

2